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exploring nautical mapping with open data @zacmcc

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what? bathymetry contours navigation aids points of interest bottom material labels

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why? slippy map features you want it’s free it’s fun we like to share

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data noaa National Oceanic and Atmospheric Administration usgs United States Geological Survey openstreetmap fwc florida fish and wildlife conservation commission

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gdal merge translate warp color map contour Geographic Data Abstraction Library gdal.org

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QGIS cross platform open source lots of file formats user interface for gdal alternative to ArcMap

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tilemill powerful stylesheets vector and raster sources mbtiles rendered with mapnik

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postgis power of sql geospatial indexes it’s just postgres supported in tilemill

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contour lines

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depth labels

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navigation aids

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points of interest

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custom labels

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making the map

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#navigation_aids["aid_color"="R"]  {    marker-­‐width:  3;    marker-­‐fill:  #c81f1f;    marker-­‐line-­‐color:  darken(#c81f1f,  20%);    marker-­‐line-­‐width:  1;    marker-­‐allow-­‐overlap:  true; } #navigation_aids["aid_color"="G"]  {    marker-­‐width:  3;    marker-­‐fill:  #119511;    marker-­‐line-­‐color:  darken(#119511,  20%);    marker-­‐line-­‐width:  1;    marker-­‐allow-­‐overlap:  true; } carto styles

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how can i use the map?

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what’s missing?

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check it out tiles.mapbox.com/zac :)